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From the manufacturer

The Thermos brand is well known as the quality and performance leader in insulated food and beverage products. The Sipp line is our newest series of insulated beverage containers that mixes fashion with function. By using a Thermos brand product instead of a disposable cup, you can help the environment without compromising style.

Why Thermos?

An ideal choice for people on the go, the Thermos brand 18 ounce Stainless Steel Hydration Bottle is built to last and loaded with features to make for a more enjoyable drinking experience. Thermos vacuum insulation technology virtually eliminates temperature change within the beverage container by creating an airless space between two stainless steel walls. The result is an insulation layer that performs better than any other. A superior insulated container you can depend on to keep your beverages, colder, fresher, longer. This hydration bottle keeps beverages cold for 12, making it a great choice for long days out and about or in the office.

Features and Benefits

Constructed with double wall stainless steel, this 18 ounce hydration bottle is virtually unbreakable, yet its sleek design is both eye-catching and functional. It features a hygienic push button lid with one-handed operation. The bottle and lid are dishwasher safe for easy care and use.

Worry-Free

The lid is made of BPA-free Eastman Tritan copolymer which resists staining and provides durability. And because of the double wall insulation, the stainless steel body stays condensation-free with cold beverages.

Recommended Tip for Maximum Beverage Enjoyment

In order to maximize the incredible insulation technology, it is recommended to pre-chill the hydration bottle just prior to use. This can be accomplished by filling the bottle with cold water, attaching the lid and letting it rest for a few minutes. Before you are ready to use, simply empty the water and fill with your favorite beverage. Attaching the lid will further increase the thermal efficiency.

The Thermos brand 18 ounce Hydration Bottle is made of BPA-free materials and is backed by a five-year limited warranty.

Top customer reviews

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Beautiful Thermos bottle. It's elegant and clean, most importantly the spout is easy to drink and access water. Works great for keeping cold or warm drinks.

I have two issues with this cup:The main reason why I gave it a 3 instead of 4 or 5 stars is the hoop in the back of the lid broke within a few weeks. I am sure I can replace the lid and get a new hoop/hook, but that seems a bit expensive to replace the lid just for a hook.

The second reason is that I had wanted a 14 or 16 oz and not 18 oz thermos bottle but can't seem to find a 14 or 16 oz thermos bottle that this clean look. So it is a big heavier than I like. Not to mention after you put in the water and ice... it weighs quite a bit.. I never fill it to the fullest.

I've previously tried Sigg, Klean Kanteen, ThinkSport, Takeya, and CamelBak, but I think this is the best one yet. It's a very stylish design, doesn't leak, is easy to clean, and keeps water cold all day. Also, I am sensitive to the silicone/rubber smells some of these bottles have, and with the Thermos, I taste nothing but clean, cold water. I've only been using it for a week, but am really pleased so far.

I purchased this back in February. I wanted a container to drink water from and keep it cold. It does that effectively unfortunately. I can not use it in the way it was intended to be used. If I want to drink I have to unscrew the top. It has a straw but since my purchase I have not be able to use it. This is one of 5 tumblers or bottles that I have purchased from Amazon in the Thermos line. Three of the five do not work properly. So I decided to review this item. I am sure there are some great products available from Thermos, but this is not one of them. If you want a insulated water bottle don't look here.

Love this bottle. I like to drink hot water. When traveling, I carry a bottle with me all the time in order to have some hot water when I need it. This bottle fit my need perfectly. 18oz is just not too big or not too small. It holds a considerable amount of water while it can be fit into a backpack easily. It keeps water cool or hot for a pretty decent amount of time. I cannot travel without carrying this bottle!

I have Sjogrin's Syndrome, which means my mouth (and eyes) get drier than a desert, esp. during the night. I have purchased many, many water bottles in search of the perfect one. This is it. I can keep it on the night stand and the lid keeps it from being knocked over and getting water on my books or phone. I love that it is stainless. The water stays fresh and cold all night long. The lid pops open easily without thought or effort so when I'm only half awake, I still don't fumble with it. My lips and mouth are also kind of numb and the drinking spout makes it easy to drink without spilling/dribbling.

I only put water in this. I had a purple one similar to this and one day when I was in a hurry to get out the door, I put coffee in it. I still can't get the coffee flavor out after many washings so now the purple one is my coffee thermos and my blue one is water only.

Most people probably wouldn't think of a water bottle as life changing but this water bottle has made my life so much less exasperating. Thanks, Thermos, great design and great product.

My first Sipp thermos lasted a couple years before it got mangled in a car-on-bike accident. I can still use it bed-side (the elastic that keeps the lid in place snapped, the plastic lid is badly cracked, and the bottom is bowed from impact such that it weeble-wobbles). It was a clearance item at Target and I was afraid that my Ultimate Water Bottle would not be available anymore.

Enter Amazon, to the rescue! And it's even in my favorite color! I cannot state strongly enough how much I love this thermos. Perfect size, shape, and features.

The only beefs I have are two small things: 1) I use the squarish ring to carry this guy around sometimes, it's not the most ergonomic design and will cut into your fingers a bit and 2) the push button is pretty responsive. I wouldn't pack this thermos somewhere where it might accidentally pop open. I've seen similar buttons on other (otherwise inferior) water bottles that have a little metal loop that clicks into place to keep the button from being accidentally depressed. This would be extremely useful for this otherwise perfectly designed piece of art.

However, this bottle came wothout any original box, not even a plastic bag. They just threw this bottle in the package. There is a lot dust. After I cleaned it, I can see a lot small scraches on the bottle, one of them is pretty deep even though it's not a big one. Also, there is some black stuff on the cap. Even I wshed it with Dawn, there is some residues.

All in all, the bottle is good. I just think Amazon sent me a used one. Really disappointed, Amazon. If I knew I'd get a used one, I would've just gone to Target.